The Humboldt University of Berlin (German: Humboldt-Universität zu Berlin) is Berlin's oldest university, founded in 1810 as the University of Berlin (Universität zu Berlin) by the liberal Prussian educational reformer and linguist Wilhelm von Humboldt, whose university model has strongly influenced other European and Western universities. From 1828 it was known as the Frederick William University (Friedrich-Wilhelms-Universität), and later (unofficially) also as the Universität unter den Linden after its location.
In 1949, it changed its name to Humboldt-Universität in honour of both its founder Wilhelm and his brother, geographer Alexander von Humboldt. In addition to the strong anchoring of traditional subjects, such as science, law, philosophy, history, theology and medicine, Berlin University developed to encompass numerous new scientific disciplines. Alexander von Humboldt, brother of the founder William, promoted the new learning.
With the construction of modern research facilities in the second half of the 19th Century teaching of the natural sciences began. Famous researchers, such as the chemist August Wilhelm Hofmann, the physicist Hermann von Helmholtz, the mathematicians Ernst Eduard Kummer, Leopold Kronecker, Karl Weierstrass, the physicians Johannes Peter Müller, Albrecht von Graefe, Rudolf Virchow and Robert Koch, contributed to Berlin University's scientific fame.